{"id":"MAL-2026-12966","summary":"Malicious code in bnpl-blocks-independent-bnpl-preset-container (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (dc9c82b8cf411cb022edae70d6911b9b52637506ce2d1f9556275bbd251cb87a)\nindex.js unconditionally requires./_support on module load. _support.js selects a platform-specific asset path, fetches an opaque binary over HTTPS from destinations reassembled via array.join(\"\") string-concatenation obfuscation (Cloudflare Workers subdomains under oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev), with a DNS TXT chunked retrieval fallback against sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The fetched bytes are written to /var/tmp or %TEMP% under disguised names (\".cache_\u003crand\u003e\", \"dotnet_diag_\u003crand\u003e.exe\"), chmod 0755, and spawned detached via /bin/sh -c or cmd.exe with a /tmp timestamp marker gating re-execution. Marker/process names and honoring of DISABLE_TELEMETRY / ANALYTICS_OPT_OUT / DO_NOT_TRACK provide a telemetry cover story. No hash or signature verification is performed on the downloaded executable, and the destinations are non-publisher, mutable, and obfuscated.\n","modified":"2026-08-05T15:51:19.936617490Z","published":"2026-08-05T14:43:52Z","database_specific":{"malicious-packages-origins":[{"source":"amazon-inspector","versions":["35.3.2"],"id":"IN-MAL-2026-015418","import_time":"2026-08-05T15:19:50.301537774Z","modified_time":"2026-08-05T14:43:52Z","sha256":"dc9c82b8cf411cb022edae70d6911b9b52637506ce2d1f9556275bbd251cb87a"}]},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/bnpl-blocks-independent-bnpl-preset-container/v/35.3.2"}],"affected":[{"package":{"name":"bnpl-blocks-independent-bnpl-preset-container","ecosystem":"npm","purl":"pkg:npm/bnpl-blocks-independent-bnpl-preset-container"},"versions":["35.3.2"],"database_specific":{"cwes":[{"name":"Embedded Malicious Code","cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature."}],"indicators":{"evidence_files":[{"sha256":"dc973eb865472379cefe64addbec36c4843e64e314e12a8bebfd82302212a934","tlsh":"a2b1986615aa70184bb0d7e4c6175416f66af763638085d8fb9c55c80ff221883f2efc","path":"_support.js"}],"package_integrity":[{"filename":"bnpl-blocks-independent-bnpl-preset-container-35.3.2.tgz","hashes":{"sha512_sri":"sha512-xJF+cv1ZUE1xYj2450hOYX1tGGftAg5qM0XdS4mIBYvLWPfKqp3gzWzqbHlF1d/OiemHtAoDaX0xkizjgiZOjA==","sha1":"e47a34a5483d2944aaa0c4b82cdaa8d8802aa925"}}]},"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-independent-bnpl-preset-container/MAL-2026-12966.json"}}],"schema_version":"1.8.0","credits":[{"name":"Amazon Inspector","contact":["inspector-research@amazon.com"],"type":"FINDER"}]}